Valve-gear for explosive-motors.



No. 645,l77. Patented Mar. [3, I900. H. P. MAXIM, H. M. POPE &. H. W.ALDEN. VALVE GEAR FOR EXPLOSIVE MOTORS.

(Application filed. July 26, 1998.)

(No Model.)

Invenzwns:

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7 WW k6: Cid/4 UNITED STATES PATENT OFFICE.

HIRAM PERCY MAXIM, HARRY M. POPE, AND HERBERT W. ALDEN, OF HARTFORD,CONNECTICUT, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE COLUMBIA ANDELECTRIC VEHICLE COMPANY, OF JERSEY CIT NEW JERSEY.

VALVE-G EAR FOR EXPLOSlVE-MOTORS.

SPECIFICATION forming part of Letters Patent No. 645,177, dated March13, 1900. Application filed July 26, 1898. Serial No. 686,913. (Nomodel.)

To all whom it may concern:

Be it known that we, HIRAM PERCY MAXIM, HARRY M. POPE, and HERBERT W.ALDEN, citizens of the United States, residing in the city and county ofHartford, State of Connecticut, have invented certain new and usefulImprovements in Motors, of which the following is a specification,reference being had to the accompanying drawings, forming a part hereof.

This invention relates to motors in which power is applied to areciprocating piston, and more especially to motors of this generalclass which are intended for use where it is an object to prevent theaccess of dust, &c., to the working parts of the motor.

The object of this invention is to provide for the complete inclosing ofthe working parts of the motor, while at the same time permitting freeaccess to such working parts to be had when necessary.

The invention is illustrated in the accompanying drawings as applied toan explosiveengine of an ordinary type; but it is also applicable toother forms of motors, as will be readily understood.

The nature of the invention will be more fully described hereinafterwith reference to the drawings, in which Figure 1 is a vertical sectionin the plane of the axis of the crank-shaft (but with said shaft inelevation) of an explosive-engine to which the present improvements areapplied. Fig. 2 is a vertical section on the plane inclicated by thebroken line 2 2 of Fig. 1 looking toward the right.

The cylinder E, with its wall or casing, piston E, connecting-rod Evalve-chest E, and inlet and exhaust valves E E may be of any ordinaryor desired construction, form, and arrangement, the present inventionnot being directly concerned therewith. The cylinder is represented ashaving a flange E, by which, with suitable bolts and nuts E it may besecurely and closely united to the casing F, which is provided with aseat f to receive it; but any other suitable means of uniting the casingF and the casing or wall of the cylincrank-shaft G. The latter is formedin twoparts, as is usual in motors of the class of that shown in thedrawings, each part of the shaft being formed with crank-disks G G thepiston-rod or connecting-rod playing between the two crank-disks. A'gearG on the end of the crank-shaft meshes with a gear H on a counter-shaftH. The latter is supported in a suitable bearing carried by a bracket Hwhich depends from a movable plate H The casing F is provided with anopening between the crank-shaft and the valvechest large enough to admitthe counter-shaft H, with its gear, and is closed by the plate H whichmay be secured to its seat by suitable bolts H Theshaft H carries thecams H, which cooperate in the usual manner with the valverods H H thelatter passing through suitable guides H on the plate H In this mannerthe valve-gear can be removed readily, Whenever required, withoutdisturbing other parts of the motor, and yet it is at all times, when inuse, completely inclosed within the continuous casing F.

The motor illustrated in the drawings,which is entirely self-contained,the bearings for the crank-shaft, as well as the valves, valvegear, andcylinder, being wholly supported by the casing F, may be convenientlysecured by brackets F to any suitable support, such as a frame member ofthe machine with which it is used, suitable caps being provided, asindicated.

It will be understood that the casing above referred to completelyincloses and protects all of the working parts of the motor, being, ineffect, continuous with the casing or wall of the cylinder, and that inthe form shown it also supports the motor.

In a motor, the combination with a crankvalve-gearcan'iedbysaid shaft,substantially shaft, cylinder, valve-box and valve-rods, of as shown anddescribed.

a casing inclosing the crank-shaft and hav- This specification signedand witnessed this ing an opening, a plate removably secured to 28th dayof June, A. D. 1898. 5 the casing to cover said opening and formingHIRAM PERCY MAXIM.

a continuation of the casing, said plate hav- HARRY M. POPE. ingguide-openings for the passage of the I H. WV. ALDEN.

In presence of-- H. E. HART, W. B. GREELEY.

valve-rods, a counter-shaft mounted in a hearing carried by said plateand having a gear 0 meshing with it gear on the crank-shaft, and

